Draw-bar and yoke connection.



v 1. r. orcomvon. DRAW BAR AND YOKE CONNECTION.

APPLICATION FILED OCT. 18. I915.

- WITNESSES: m jazz/113 W/ f i wg ATTORNEY Patented Nov. 26, 1918.

Connections, of which the following UNITED STATES PATENT OFFICE.

JOHN F. ocomroa, or CHICAGO, ILLINOIS, assIenon T0 WILLIAM H. MINER, orCHAZY, new YORK.

Specification of Letters Patent.

Patented Nov. 26, 19 18.

Application filed October 18, 1915. Serial No. 56,425.

To all whom it may concern:

Be it known that I, JOHN F. OConnon a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Draw-Bar and Yoke 1s afull, clear, concise, and exact description, reference being had to theaccompanying drawings, forming a part of this specification.

This invention relates to improvements in draw-bar and yoke connections.

One object of the invention is to provide a draw-bar and yoke connectionso arranged that the draw-bar may be'disconnected or' replaced withoutdisturbing the gear within the yoke.

Another object of the invention 18 to provide a, yoke having a lockingblock to engage the draw-bar shoulder, said block being so arranged thatit is sustained in operativeposition by the draw-bar carry-iron and alsominimizes the wear or chafing on the drawbar shank which ordinarilyoccurs at the carry-iron thereby prolonging the life of the drawar.

In the drawing forming a part of this specification, Figure 1 is alongitudinal, sectional view of a portion of a car showing myimprovement in-connection therewith. Fig. 2 is a horizontal, sectionalview taken substantially on the line 2-2 of Fig. "1. And Fig. 3 is adetail perspective of the locking block employed with my yoke.

In said drawing, 10 denotes the shank of a draw-bar, 11 the shoulderedbutt thereof, and 12 the gear proper, the drawing illustrating afriction gear of a well known type. The yoke A. is a cast yoke having anupper arm 13, lower arm 14, vertical, rear connecting piece 15, sidewalls 16-16 at the front thereof, which together with the top arm, forma hood or head within which is received the 'butt of the draw-bar. Atits forward end, the upper arm 13 is provided with an inwardly extendinggib or shoulder 17 which is adapted to engage the corresponding uppershoulder 18 of the draw-bar butt. The side wings or plates 1616 arereanwardly and downwardly extended as indicated at 19 and are mergedinto the for ward end of the lower arm 14 of the yoke. The latter isalso provided with a centrally located ear 20, which together with saidsections 1919 are perforated and adapted to receive a pivot pin 21,thelatter being held in position by. any suitable means such as thecotters 22. Mounted on said pin 21 is a locking blockor swinging leveror latch- I B, the latter having a pair of perforated inner ends 23-23which fit within the spaces between the members 19 and ear 20, wherebthe block B is hinged or pivotally mounte The block B is also providedwith a shoulder or abutment or gib 24, which, when the block is innormal position, engages the lower shoulder 25 of the draw-bar.Forwardly of the shoulder 24,.the block B is provided with a raisedhorizontal plate portion or handle or arm 35, the latter beingpreferably outwardly tapered! toward its front end. The plate or handleor arm 35 fits against the under side of the draw bar shank 10 and isinterposed between the latter and the draw-bar carry-iron 26, asillustrated in the drawing. The side walls 1616 are provided withelongated slots 27 to accommodate a coupler key 28 although it will bepparent that the yoke is so arranged as to be operatively connected withthe draw bar without the use of a coupler key. A tie plate 29 is shownof ordinary construction for supporting the gear.

To disconnect the draw bar from the yoke for repairs or replacement, itwill be apparent that it is merely necessary to remove thecarry-iron andthereby permit the block B to be swung downwardly. This ermits thedraw-bar butt to be lowered su ciently to clear the upper shoulder orgib 17 whereupon the draw bar may be removed, assuming that no couplerkey is present or that it has previously been removed. Obviously, thelowering of the block B will not disturb or affect the gear proper, suchas has hitherto been a disadvantage of certain prior ty es of castyokes. In replacing the draw bar the block B is swung upwardly and in sodoing a comparatively long leverage is obtained which assists in liftingor camming the butt of the draw bar up into proper position. When inproper position, it is obvious that the block or lever or latch B willmove forwardly in unison with the draw bar .so' that any wear on thecarry-iron is taken up by the block and the draw bar shank is therebysaved and its life prolonged, an important consideration in the presentrailway practice which requires heavy draw bars or couplers that are sofar extended bestationary, Wear on the shank 10 is minimized since it issupported over a large area on the plateor arm 35.

I claim: A

1. A cast yoke'having a pivoted locking block, and means for retainingthe block in operative position by the draw bar carry- 1ron.

- 2. A yoke for railway draft riggings having a hooded forward end and adisplaceable shouldered block pivoted thereto, the shoulder of saidblock being adapted to engage a shoulder of the draw bar, said blockbeing provided with a forward extension adapted to be interposed betweenthe draw bar shank and draw bar carry-iron and arranged to be supportedby the latter.

3. A yoke for railway draft riggings, said yoke having a hooded forwardend provided with means adapted to engage one shoulder of a draw barbutt, and a block detachably connected to said yoke and separabletherefrom without destructive effort, said block having a shoulderadapted to engage another shoulder of the draw bar butt, said blockhaving an extension forwardly of its shoulder adapted to be normallyinterposed between the draw bar shank and draw bar carry-iron.

4. A yoke for railway draft riggings, having an integral'shoulderadapted to engage the upper shoulder of a draw-bar, said yoke beingprovided with a pivoted block having a shoulder adapted'toengage thelower shoulder of a draw bar butt, said block being provided with aplate adapted to extend along theunder side of a draw bar shank and uponwhich the latter rests.

5. In mechanism of the character described, the combination with a yoke,a draw bar, and means for connecting said yoke and draw bar, of aforward extension movably mounted with respect to the yoke and extendingalong the under side of the shank of the draw bar and adapted to beinterposed between the latter and a draw bar carry iron to therebyminimize wear on the shank.

6. In a draft yoke for railway car draft nae ova rigging, thecombination with a hollow head upon said yoke adapted to-receive a drawbar, of a lever forwardly extended through the draw bar opening of thehead, said lever being swingingly connected to the yoke and 1adapted tolift a draw bar within the yoke read.

7. In a draft rigging for railway cars, the combination with a draw bar,a carry iron therefor, and means for supporting the same, of a draftyoke, the said draft yoke being connected to the draw bar and having adraw bar lifting lever therein, the

vsald lever being forwardly extended and passing between the draw barand the draw bar carry iron.

8. In a draft rigging for railway cars in combination, a draw bar, adraw bar carry iron, a draft yoke, the said draft yoke being providedwith a hollow head to receive the draw bar, means upon the draft yoke tosecure the draw bar Within thehead, said means including a lever, thesaid lever having a shoulder to engage the draw bar and a handleextended between the draw bar and the draw bar carry iron.

9. In a draft rigging for rallway cars in combination, a draw bar, a.draw bar carry iron and a draft yoke, the draft yoke being provided witha, hollow head to receive the draw bar, the draw bar being provided withshoulders, the yoke having a gib to engage one of said shoulders, andalso having a lever adapted-to engage the other of said shoulders, thesaid lever being forwardly extended between the draw bar and the drawbar carry iron.

10.. In a draft rigging for railway cars in combination, a shouldereddraw bar, a draft yoke having a hollow head and a lever swinginglymounted upon said yoke, the

yoke being provided with a shoulder to engage one of the shoulders ofthe draw bar, the lever having a shoulder to engage the other shoulderof the draw bar, the said lever being extended through the forwardopening of the yoke head and being adapt ed to lift and lower the saidbar within said head.

ill. In a draft; rigging for railway cars in combination, a houldereddraw bar, a draw bar carry iron, a draft yoke and a lever swinginglyconnected to said draft yoke, the draft yoke being provided with ahollow head to receive the draw bar and having a gib to engage one ofthe shoulders of' said draw bar, the lever being provided with ashoulder to engage another shoulder of the draw bar, the said leverhaving a forwardly extended member passing between the draw bar and thedraw bar carry iron.

, 12. In a draft rigging for railway cars in combination, a draw bar, adraft yoke, and means for connecting the draft yoke to the draw bar,said means including a lever secured t0 the yoke, said lever beingforwardly extended to provide a wear plate between the draw bar and thedraw bar carry iron.

13. In a draft yoke for railway car draft rigging, the combination witha hollow head upon said yoke, of a latch swingingly connected to theyoke and adapted to engage a draw bar, the said latch being providedwith an arm, whereby it may be moved into locking position upona drawbar.

14. In a draft yoke for railway car draft rigging, the combination witha gib adapted to engage one draw bar shoulder, of a latch, having a gi'bto engage another draw bar shoulder, the said latch being provided withmeans for lifting the draw bar into engagement with both of said gibs.

15. Ina draft yoke for railway car draft rigging, having upper and lowerlimbs,

adapted to be engaged to the draw bar, a latch swingingly connected toone of said limbs, said latch having one portion of its upper faceangularly arranged to another portion, one of said portions beingadapted to engage a draw bar-when the latch is wung to one position, andthe other portion engaging the draw bar when the latch is swung toanother position,

16. In a draft yoke for railway car draft rigging, the combination witha hollow head upon said yoke, of a latch swingingly associated with theyoke and adapted to engage a draw bar, the said latch being providedwith an arm, whereby it may be moved into locking position upon a-drawbar.

In witness that I claim the foregoing I have hereunto subscribed my namethis 14th day of Oct., 1915.

JOHN F. OGONNOR.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. O.

